DBMS server 電腦
Hard Disk
- Database
- Table Spaces
- Data files
↑ I/O 操作 ↓
- Database
RAM
- DBMS process
- Listener
- User processes
- Scheduler
- Lock manager
- Optimizer
- SQL cache: 最近的SQL statement 或 PL/SQL procedures, triggers
- Data cache: 從 Data files 而來
Hard Disk
↑ I/O 操作 ↓
RAM